Union City, TN land: flood and parcels
5,176 parcels
On the county tax roll
- Acres on the roll6,291
- In a FEMA flood zone5.8%special flood hazard area
Free account: 25 parcel cards a day on the map, with sale history, road access and elevation. Get started free
Our map has no zoning layer for Union City yet. Ask the city's or Obion County's planning office which zoning applies to a parcel.
Around Union City
Parcels to start with
Flood zones and wetlands
Recorded flood claims in Union City
Fewer than 10 insured flood claims were recorded in and around Union City from 1978 to Sep 2026. FEMA counts claims on buildings with NFIP flood insurance, so land without an insured building never shows here.
Counted in the 6 census block groups that lie mostly inside Union City, so the edges may reach past the town line. This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data.
People and new homes in Union City
- Population10,814July 2025 estimate, −3.2% since 2020
- Median household income$50,8702020–2024 average, ±$11,628
- New homes permitted22022, 2 single-family; 12 in 2021
U.S. Census Bureau, Population Estimates Program, Vintage 2025 (May 2026); U.S. Census Bureau, American Community Survey 2020-2024 5-year (B19013) (Jan 2026); U.S. Census Bureau, Building Permits Survey (Sep 2026).
Land in Union City by useLand use on the county roll
| Land class | Parcels | Share |
|---|---|---|
| Building on record | 4,295 | 83% |
| Other or not coded | 596 | 12% |
| Institutional | 224 | 4.3% |
| Farm and timber | 61 | 1.2% |
61 farm and timber parcels cover 1,945 acres. County tax roll 2026 (pulled Oct 2026); land class read from the roll's land-use and building fields.
Typical lot sizeThe typical lot, from the roll
The median parcel in Union City is 0.32 acre (5,176 parcels with a size).
Acres from the county roll, or from the parcel's own outline where the roll's figure is off by more than three times. Condominium units that share one point (each carrying the whole complex's acres) are left out of the lot sizes.
Land parcels in Union CityFarm and timber parcels to start with
- 24.8 acres of farm and timber land
- 4637 Knox Daniel Rd 24.7 acres
- 24.7 acres of farm and timber land
- 23.7 acres of farm and timber land
- 19.4 acres of farm and timber land
- 19.3 acres of farm and timber land
- 19.1 acres of farm and timber land
- 19.0 acres of farm and timber land
- 19.0 acres of farm and timber land
Farm and timber parcels of an acre or more, each with its own page of public roll facts.
Nearby townsTowns around it
Questions about Union City landAnswers from the public records
How many parcels are in Union City, TN?
5,176 parcels on the 2026 Obion County tax roll (pulled Oct 2026), covering 6,291 acres.
How much vacant land is in Union City, TN?
Obion County's vacant-land class has not been through our aerial check yet, so we don't call any parcel here vacant land.
What is the typical lot size in Union City?
The median parcel is 0.32 acre, from 5,176 parcels with a recorded size.
How much of Union City is in a flood zone?
5.8% of parcels are in a FEMA special flood hazard area (National Flood Hazard Layer, as of Sep 2026). Check each parcel's own flood line before you buy.
Are there wetlands in Union City?
0.2% of parcels are a quarter or more wetland on the USFWS National Wetlands Inventory, a mapping guide, not a legal delineation.
What is Union City zoned?
Our map has no zoning layer for Union City yet. Ask the city's or Obion County's planning office which zoning applies to a parcel.
Are there land prices for Union City?
No land prices for Union City yet. Area prices print only where Tennessee's own price test passed for the county, and it has not for Obion County.
How many people live in Union City?
About 10,814 (Census estimate for July 1, 2025), −3.2% since 2020.
How many new homes are being built in Union City?
Building permits authorized 2 new housing units in 2022 (Census Building Permits Survey).
Where does this data come from?
Parcels: County assessor and GIS parcel files (Davidson, Hamilton, Williamson, Wilson, Robertson). Flood: FEMA National Flood Hazard Layer. Wetlands: USFWS National Wetlands Inventory. Towns: U.S. Census places. Every figure is counted from those files on our map.
More in Obion CountyIts other towns
About these numbersSources, dates and how these figures are built
What Groundwork can price in Union City
Facts only: no price estimate on any parcel here.
Sources
Parcels: County assessor and GIS parcel files (Davidson, Hamilton, Williamson, Wilson, Robertson) (2026 roll, pulled Oct 2026); flood: FEMA National Flood Hazard Layer (as of Sep 2026); wetlands: USFWS National Wetlands Inventory (as of Oct 2026); town limits: U.S. Census Bureau TIGER/Line places; sales: the county's own file, through Sep 2026; counted on our map built Oct 2026.